TRON still have high liquidity, everyone prefers USDT over that blockchain because of the speed of confirmations and cheap costs, it is true that Ethereum fees are starting to be more normal or convenient but still more users are using TRON because of USDT. If USDT moves to any other blockchain other than TRON, we will start the stage of losing investments and liquidity, and then it will turn to any other rarely used blockchain that is not overcrowded.
i believe, that's one of the major advantages of Tron network. the cheap and fast transactions when they are dealing with USDT using Tron network as compared to other networks. so for me, this is not bad at all as a lot of traders are using this network even for this specific usage only.
so when it comes to why this coin is bad or good, depends on how a crypto user is looking at this coin. otherwise, if you don't like this coin, then it is always your prerogative not to use it, right?